Google+ came eighth in the list with 8.02m unique monthly visitors.
First, the search sites need a significant number of monthly visitors.
Based on this information, it's estimated that monthly visitors top 42,000.
Instead, it uses the art to attract more than 100,000 monthly visitors to the site.
It claimed 11.2 million monthly visitors as of November 2011.
This was at a time where the number of monthly unique visitors to the site had increased to almost three million.
As of early 2012, the site had more than 1 million monthly unique visitors.
In July its monthly visitors total was double that, and put it among the top 10 news sites.
Compete.com estimated 277,512 monthly visitors to the site in August 2012.
"I've seen some of the monthly visitors who fly in from around the world," he added.
